On the resource reservation approach to design a large-scale and ultra high-speed MAN

Abstract

To support a great number of dispersed users in a wider area with high-speed communication services, we develop a large-scale and ultra high-speed MAN based on hierarchical ring configuration. The network is constituted by backbone and local rings, which are connected by bridges. In such a network, traffic congestion may always occur due to the mismatch of transmission speed between backbone and local rings. To cope with the issue, we adopt a resource reservation approach based on the method of cyclic reservation-based access control for controlling access to different network resources, viz. network bandwidth and bridge buffers. By this approach, a MAC protocol that can achieve fair access to network resources and avoid traffic congestion is proposed for the network. To evaluate the performance properties of the network, several simulation experiments are performed and some optimistic results are revealed.